Add phpstan

phpstan.neon

@@ -9,3 +9,10 @@ parameters:
 
     # The level 8 is the highest level
     level: 6
+
+    ignoreErrors:
+        - '#Call to an undefined method Illuminate\\Contracts\\Auth\\Authenticatable::api\(\)#'
+        - '#Call to an undefined method Illuminate\\Contracts\\Auth\\Authenticatable::getNamiGroupId\(\)#'
+        - '#Illuminate\\Contracts\\Auth\\Authenticatable\|null given#'
+
+    checkMissingIterableValueType: false